| Ritterhude to Oak Harbor (Washington) | 4,869.72 mi (7,837.05 km) |
| Ritterhude to Oak Hills (Oregon) | 5,042.15 mi (8,114.56 km) |
| Ritterhude to Oak Lawn (Illinois) | 4,227.40 mi (6,803.34 km) |
| Ritterhude to Oak Park (California) | 5,630.76 mi (9,061.83 km) |
| Ritterhude to Oak Park (Illinois) | 4,219.92 mi (6,791.30 km) |
| Ritterhude to Oak Park (Michigan) | 4,027.83 mi (6,482.16 km) |
| Ritterhude to Oak Ridge (Florida) | 4,675.02 mi (7,523.71 km) |
| Ritterhude to Oak Ridge (New Jersey) | 3,775.51 mi (6,076.09 km) |
| Ritterhude to Oak Ridge (Tennessee) | 4,395.62 mi (7,074.07 km) |
| Ritterhude to Oakdale (California) | 5,468.60 mi (8,800.86 km) |
| Ritterhude to Oakdale (Minnesota) | 4,236.99 mi (6,818.78 km) |
| Ritterhude to Oakland (California) | 5,501.64 mi (8,854.03 km) |
| Ritterhude to Oakland (New Jersey) | 3,765.80 mi (6,060.47 km) |
| Ritterhude to Oakland Park (Florida) | 4,746.04 mi (7,638.01 km) |
| Ritterhude to Oakleaf Plantation (Florida) | 4,602.32 mi (7,406.71 km) |
